Pathology: 6 Vasculitis Flashcards
Vasculitis Conditions of the Veins
- Buerger’s Disease
- Leukocytoclastic Vasculitis
What condition is often marked by WEAKENING OF PULSES in upper extremities?
Takayasu
What is the described condition…
Likely occurs as a result of a T-Cell mediated Immune response to a uncharacterized vessel wall antigen.
Pro inflammatory cytokines (especially TNF) and anti-EC antibodies may also contribute/
Giant Cell Arteritis
Untreated, Polyarteritis Nodosa is typically fatal, what organ(s) does it affect mainly to inflict death?
Kidneys
What is the most common form of Vasculitis among older adults in developed countries?
Giant Cell Arteritis
What is the ‘triad’ of Granulomatosis with Polyangiitis?
What are the two most common/important ANCAs? What are they typically associated with?
Anti-proteinase-3 (PR3-ANCA) [previously called c-ANCA]: Associated with ‘Granulomatosis with Polyangiitis’.
Anti-myeloperoxidase (MPO-ANCA) [previously called p-ANCA]: Typically associated with ‘Microscopic Polyangiitis’ and ‘Churg-Strauss syndrome’.
Is systemic lupus erythematous a small vessel Vasculitis or a large vessel Vasculitis?
Small
Kawasaki disease is believed to be a ____________________ response directed against cross reactive vascular antigens.
Delayed-type hypersensitivity.
Name the condition described below… Prevelence in certain ethnic groups (Israeli , Indian subcontinent, and Japanese) and mainly in tobacco smokers, and before 35 y/0.
Thromboangiitis Obliterans
What is an example of an Anti-Endothelial Cell antibody caused disorder?
Kawasaki
What vasculitis disorder do you think of when you think of heavy tobacco smokers under 35?
Thromboangiitis Obliterans.
Other than the temporal arteries, what are the three most common arteries affected by giant cell arteritis?
Vertebral arteries
Ophthalmic arteries
Aorta
What ANCA is associated with granulomatosis with polyangiitis?
Anti-Proteinase-3 (PR3-ANCA)
What is the described condition…
Acute, febrile, typically self-limiting illness of infancy and childhood associated with an arteritis of mainly large to medium sized vessels.
It’s clinical significance stems from the involvement of coronary arteries.
Kawasaki Disease
What is Tx of Microscopic Polyangiitis (2)?
Immunosuppressive and removal of offending agent.
Describe how Autoreactive T-Cells cause Vasculitis.
They cause injury though the formation of granulomas
What ANCA is associated with Churg-Strauss syndrome?
MPO-ANCA
What is important about the diagnosis of Giant cell arteritis ?
This disorder can cause sudden blindness, so hurry it up
What is the described condition…
Initially signs and symptoms are non specific, constitutional.
Progression to reduced upper extremity blood pressure, pulse strength and neurological deficits. Ocular disturbances, including visual field defects, retinal hemorrhages and total blindness.
Takayasu Arteritis
Describe how ANCAs lead to EC injury?
- Directly activate neutrophils
- Stimulates release of reactive oxygen species
- Proteolytic enzymes
- This leads to EC injury
What Vasculitis is an ALLERGIC granulomatosis?
Churg-Strauss syndrome
What is the 1st line treatment for Kawasaki Disease?
IVIG & aspirin
What term is described:
A small irculating antibody that reacts with neutrophil cytoplasmic antigens, common in many patients with Vasculitis
Anti-Neutrophil Cytoplasmic Antibodies (ANCAs)
What is the described condition…
Clinical Presentation: Hemoptysis, Hematuria, Proteinuria, Abdominal Pain, Muscle plain and palpable cutaneous purpura.
Microscopic polyangiitis
(T/F): Giant Cell arteritis can lead to sudden an permanent blindness.
True
Giant Cell Arteritis